package adapter.classadapter;

import adapter.classadapter.uml.Voltage220V;

/**
 * @author : DuJiabao
 * @Date : 2021/3/3 9:38
 * @Project : design-pattern
 * @File : null.java
 * @Desc :
 */
public interface Voltage5V {
  int output5V();
}
